In Awesomenauts, like in any MOBA, a lot of the fun depends on how well-matched you and your enemy are in terms of skill. I used to play Foxy and reached league 3, but now I want to learn Derpl, a character I've never played before. I expect to be demolished in leagues 3-6 because of this, and I don't really want to have a series of losses and let other people down. So before I start learning Derpl, I want to lower my league to at least league 7. How do I do it efficiently, in terms of time taken and effect on other players? Do I need to play long games or leave prematurely? Do I need to die a lot or just be passive?
If this question is too complex, then more simple question: What is the formula for my rank changes after I finish a game?